Hello & Welcome to Just Answer,
Can you double-check that model number for me, or send a link to the online manual you referred to?
Also, do you have ANY other devices (phones, fax, etc.) connected to this phone line?
Hi again and thanks for that information.
May I ask:
1) the AGE of this system?
2) Have there been any storms in your area - about the same time this started?
3) What phone service provider (phone company) you have for this phone line?
4) Do you have ANY other devices (phones, fax, etc.) connected to this same phone line?
Thanks for letting me know it was fixed.
Note: We experts here have no access to or control over any deposits or charges, but YOU should be able to access that information by using the "My Account" link - on your side of the system.
Please let me know if you have any more questions about your phones.
Take Care & Have a Safe & Relaxing Holiday Season. Greg A.